Model aircraft hobbyists, research universities and commercial drone interests filed lawsuits Friday challenging a government directive that they say imposes tough new limits on the use of model aircraft and broadens the agency's ban on commercial drone flights. The three lawsuits asked the U.S. Court of Appeals for the District of Columbia to review the validity of the directive, which the Federal Aviation Administration issued in June. The agency said the directive is an attempt to... Click to expand...ABC News: Lawsuits Challenge FAA Drone, Model Aircraft Rules Continue reading...